Sadly, not having your legs fall asleep or the seatback in front of you hit you in the face on a plane is an expensive request these days. But a few airlines try to get you close. Conde Nast recently did a comprehensive study of the amount of legroom available on both US and international flights, finding that, in fact, it's not gone to hell on every airline.
While the standard legroom measures 30 inches in coach, according to Conde Nast, a few carriers provide a bit more legroom. The survey only looked into the legroom on major, recognizable airlines, but found as far as US carriers go, JetBlue gives 34 inches of space, while Virgin and Southwest each offer 32 inches. Delta, American, Alaskan, and Hawaiian all give out 31 inches, while the two major budget airlines, Spirit and Frontier, are squeezing people in at 28 inches. Cue the Smashing Pumpkins.